# zPieceCidString

> `const` **zPieceCidString**: `ZodCustom`\<`string`, `string`\>

Defined in: [packages/synapse-core/src/utils/schemas.ts:30](https://github.com/FilOzone/synapse-sdk/blob/2a86dcd351d444b2bdc16467315429ced8fb506b/packages/synapse-core/src/utils/schemas.ts#L30)